Universal spacer for tire building drum

a technology for building drums and spacers, which is applied in the field of universal spacers for tire building drums, can solve the problems of collmann spacers that cannot be fitted into the bot drum application without major modification of the drum, and the spacer in the collmann patent has the potential to change with vibration loosening,

Inactive Publication Date: 2004-02-19
THE GOODYEAR TIRE & RUBBER CO
View PDF7 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

0009] One aspect of the present invention is to provide a simple replacement for the plurality of spacer blocks employing a single adjustable or universal spacer such that two such spacers can be used on a given BOT drum to achieve the purpose of the plurality of spacer blocks ordinarily used.

Problems solved by technology

A screw type adjustable spacer of the sort taught by Collmann was tried on the BOT drum, but problems were encountered.
Most specifically, the spacer in the Collmann patent has the potential to change with vibration loosening.
Further, the Collmann spacer is too large to fit into the BOT drum application without requiring major modification of the drum.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Universal spacer for tire building drum
  • Universal spacer for tire building drum
  • Universal spacer for tire building drum

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] The operation of the prior art spacer block method of limiting or controlling the diameter of a tire tread breaker package building drum 10 (which includes but is not limited to a BOT (belt overlay tread) drum) is evident upon examination of FIGS. 1A and 1B. In FIG. 1A, the outer cylindrical surface 12 of the drum 10 is shown in its maximal radially inward position, corresponding to a radius of R.sub.1 with respect to center axis 14. A traveling shaft 16 is contiguous with a cam assembly 18 which moves axially to the right to force the outer cylindrical surface 12 radially outward, as shown in FIG. 1B where the radius of the cylindrical surface 12, with respect to the centerline 14, is R.sub.2. Pneumatic force is used to move the cam 18 axially to the right from the position shown in FIG. 1A to the position shown in FIG. 1B. Typically, there is a spring component that will return the cam to its initial position once the pneumatic force is withdrawn. A prior art spacer block 2...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
distanceaaaaaaaaaa
diameteraaaaaaaaaa
circumferenceaaaaaaaaaa
Login to view more

Abstract

According to the present invention, a universal spacer, connected to a traveling rod of a tread breaker tire building machine, incrementally adjusts the travel distance of the traveling rod and thereby controls the diameter of the building drum.

Description

[0001] The present invention relates to apparatus for setting the diameter of a tire building drum in which the diameter is set by means of a traveling rod and stop spacers, the varying diameters being to accommodate the construction of tires of different sizes on the same drum.[0002] Among the types of machines used in the assembly of pneumatic tires for motor vehicles is a drum upon which is assembled the tread assembly. The tread assembly generally includes the breaker(s), the overlay and the tread. For the latter arrangement, the machine is called a BOT (belt, overlay, tread) drum. The tread assembly is built separately from the tire carcass because of the inexpansible breaker assembly that lies radially inward of the tread.[0003] Since a given tread building machine, or BOT drum, or machine, can be used to assemble tire treads of different diameters, the cylindrical diameter of the BOT drum is made to be variable, in precisely repeatable ways. The diameter of the machine is adj...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(United States)
IPC IPC(8): B29D30/26
CPCB29D30/26
Inventor PHIPPEN, STEVEN JOHN
Owner THE GOODYEAR TIRE & RUBBER CO
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap